- derived relation
- производное отношение (результат операций над отношениями в реляционной алгебре)
Большой англо-русский и русско-английский словарь. 2001.
derived relation
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Relation of God to the Universe — Relation of God to the Universe † Catholic Encyclopedia ► Relation of God to the Universe 1. Essential Dependence of the Universe on God (Creation and Conservation) In developing the argument of the First Cause we have seen that… … Catholic encyclopedia
Derived category — In mathematics, the derived category D(C) of an abelian category C is a construction of homological algebra introduced to refine and in a certain sense to simplify the theory of derived functors defined on C. The construction proceeds on the… … Wikipedia
M-sigma relation — The M sigma (or MBH σ) relation is an empirical correlation between the stellar velocity dispersion σ of a galaxy bulge and the mass M of the supermassive black hole at the galaxy s center. The relation can be expressed mathematically as A recent … Wikipedia
Fundamental thermodynamic relation — Thermodynamics … Wikipedia
Boltzmann relation — In a plasma, the Boltzmann relation connects the electron density n e to the plasma potential phi;pl as follows:: n e = n 0 exp(e phi;pl/ k B T e)The reference for the potential is taken to be a position where the electron density is n 0.It can… … Wikipedia
Mass–luminosity relation — In astrophysics, the mass–luminosity relation is an equation giving the relationship between a star s mass and its luminosity. The relationship is represented by the equation: where L⊙ and M⊙ are the luminosity and mass of the sun and… … Wikipedia
Englert-Greenberger duality relation — The Englert Greenberger duality relation relates the visibility, V, of interference fringes with the definiteness, or distinguishability, D, of the photons paths in quantum optics. Gregg Jaeger, Abner Shimony, Lev Vaidman, Two interferometric… … Wikipedia
Blood relation — Blood Blood (bl[u^]d), n. [OE. blod, blood, AS. bl[=o]d; akin to D. bloed, OHG. bluot, G. blut, Goth. bl[=o][thorn], Icel. bl[=o][eth], Sw. & Dan. blod; prob. fr. the same root as E. blow to bloom. See {Blow} to bloom.] 1. The fluid which… … The Collaborative International Dictionary of English
Map–territory relation — The map–territory relation describes the relationship between an object and a representation of that object, as in the relation between a geographical territory and a map of it. Polish American scientist and philosopher Alfred Korzybski remarked… … Wikipedia
Object-relational impedance mismatch — The object relational impedance mismatch is a set of conceptual and technical difficulties that are often encountered when a relational database management system (RDBMS) is being used by a program written in an object oriented programming… … Wikipedia
Compton scattering — Light–matter interaction Low energy phenomena … Wikipedia
